regular expression for password field not allowing space

Question

Hi, I need a regular expression for my rails application for password field. any character or number or symbols is allowed except space.

Thanks!

Answer 1

All except spaces, do you need to narrow the results a bit more than this?

/[^ ]+/

Answer 2

At least one character, no max:

^\S+$

The \S switch excludes any whitespace (space, tab, etc.).

Answer 3

Without minimum length (or rather, with minimum length 1):

^\S+$

With minimum length 8:

^\S{7}\S+$
or, if your regex engine supports it (don't know why it wouldn't):
^\S{8,}$